American race car driver Jimmy Travis was run off the race course by an East German competitor.
As his car skidded to a halt, it uncovered a trap door in the ground.
Travis investigated, and found an abandoned Nazi lab, complete with shattered vials
of chemicals and a lightning-themed costume in a display case.

A gunshot outside distracted him while he held up the only intact vial—labeled
“Blitz-Geschwindigkeit”* (lightning-speed)—and he spilled
the chemical on himself. It started dissolving his racing suit, so he put on the
costume...just in time for a pair of killers to arrive. Making a desperate lunge toward his attackers,
he discovered he could move at incredible speeds. Travis fought off the gunmen, then headed off
to stop the cheating racer. Taking his name from the formula that had given him his speed,
Travis continued to battle crime as...the Blitz!

I don’t have much information (yet) about the other speedsters of the Big Bang universe.
Here’s what I have so far.

Troy Desrosiers writes:

His counterpart, on a parallel Earth, is
also called The Blitz and wears a yellow-and-green
costume, and is (presumably) an homage to Jay Garrick,
as his adventures take place in the 1940s with the
Knights of Justice, while the RTA has its adventures
in the 1960s and afterwards. The RTA Blitz has a kid
sidekick, Cyclone (honouring Wally West), a member of
The Whiz Kids (Teen Titans), who later takes over for
his retired mentor, but is killed in action sometime
in the 90s.

All characters are the property of their respective publishers and/or creators.
This site is in no way affiliated with DC, Image, Big Bang, or any other comic book company
and is provided as a reference guide for fans, by fans.
Feel free to link to this page, but please don’t link directly to the images